Which measures help minimize respiratory exposure to OC spray for responders?

• A. Use minimal PPE and approach quickly.
• B. Deploy in confined, poorly ventilated areas to control spray.
• C. Use PPE, maintain distance, deploy in well-ventilated areas, avoid prolonged exposure, and limit time in the spray zone.
• D. Move into the spray zone to test its effects.

Answer: (C)

Minimizing respiratory exposure to OC spray centers on protecting the airway while reducing the dose inhaled. OC spray irritates mucous membranes and airways, so the best approach combines proper protection with sensible exposure control. Use appropriate PPE to shield the eyes and face and, if required by policy, respiratory protection. Maintain a safe distance to lower the concentration of inhaled aerosols, and choose deployment in well-ventilated areas so any spray disperses more quickly rather than lingering. Avoid prolonged exposure and limit the time spent in the spray zone to reduce the cumulative dose a responder might inhale.

The other approaches increase risk: approaching with little PPE and moving quickly raises the chance of inhaling irritants; deploying in confined, poorly ventilated spaces concentrates the spray and heightens exposure; stepping into the spray zone to test its effects is unsafe and unnecessary.